🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.39 AU - 0.63 AU

Year: 239 Days

Day: 14.9 Hours

Environment

Temp: -123 °C

Axial Tilt: 31.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.3

Radius: 11.6

Gravity: 7.2 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.77 AU - 0.81 AU

Year: 461 Days

Day: 11.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 17,949,656 km

• M1: 144,212 km (0.065 R)
• M2: 807,529 km (0.06 R)
• M3: 1,258,417 km (0.094 R)
• M4: 1,666,071 km (0.066 R)
• M5: 2,446,823 km (0.075 R)
• M6: 3,000,634 km (0.117 R)
• M7: 3,507,920 km (0.115 R)
• M8: 3,960,005 km (0.104 R)
• M9: 4,618,236 km (0.118 R)
• M10: 5,030,976 km (0.092 R)
• M11: 5,858,103 km (0.082 R)
• M12: 6,285,504 km (0.12 R)
• M13: 6,713,803 km (0.037 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.8

Radius: 8.7

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.88 AU - 0.9 AU

Year: 551 Days

Day: 6.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 17,949,656 km

• M1: 108,159 km (0.11 R)
• M2: 467,045 km (0.117 R)
• M3: 1,418,786 km (0.044 R)
• M4: 1,857,407 km (0.048 R)
• M5: 2,147,178 km (0.081 R)
• M6: 2,865,547 km (0.119 R)
• M7: 3,337,379 km (0.103 R)
• M8: 3,803,227 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.8

Radius: 13.8

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.91 AU - 0.99 AU

Year: 607 Days

Day: 14.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 17,949,656 km

• M1: 171,589 km (0.104 R)
• M2: 668,702 km (0.076 R)
• M3: 1,192,145 km (0.072 R)
• M4: 1,635,853 km (0.118 R)
• M5: 2,297,375 km (0.117 R)
• M6: 2,863,902 km (0.109 R)
• M7: 3,317,632 km (0.11 R)
• M8: 5,012,277 km (0.106 R)
• M9: 5,713,741 km (0.046 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 943.9

Radius: 14.3

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.1 AU - 1.42 AU

Year: 928 Days

Day: 11.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 17,949,656 km

• M1: 177,872 km (0.09 R)
• M2: 623,225 km (0.116 R)
• M3: 1,138,290 km (0.112 R)
• M4: 1,769,743 km (0.116 R)
• M5: 2,957,400 km (0.099 R)
• M6: 4,678,374 km (0.082 R)
• M7: 5,203,014 km (0.063 R)
• M8: 5,704,466 km (0.071 R)
• M9: 6,393,663 km (0.103 R)
• M10: 6,852,181 km (0.088 R)
• M11: 7,357,373 km (0.111 R)
• M12: 7,835,936 km (0.064 R)
• M13: 10,392,564 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.4

Radius: 12.9

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.37 AU - 1.57 AU

Year: 1169 Days

Day: 11.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 17,949,656 km

• M1: 166,951 km (0.099 R)
• M2: 682,765 km (0.117 R)
• M3: 1,188,705 km (0.114 R)
• M4: 1,827,488 km (0.1 R)
• M5: 2,605,546 km (0.083 R)
• M6: 3,124,352 km (0.102 R)
• M7: 3,711,822 km (0.095 R)
• M8: 4,388,902 km (0.105 R)
• M9: 4,890,953 km (0.075 R)
• M10: 5,567,584 km (0.118 R)
• M11: 6,632,272 km (0.072 R)
• M12: 7,877,973 km (0.094 R)
• M13: 8,360,726 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.8

Radius: 14.5

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.81 AU - 2.41 AU

Year: 2011 Days

Day: 11.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 17,949,656 km

• M1: 180,415 km (0.077 R)
• M2: 813,064 km (0.057 R)
• M3: 1,343,389 km (0.113 R)
• M4: 2,220,032 km (0.092 R)
• M5: 3,025,318 km (0.073 R)
• M6: 3,629,394 km (0.108 R)
• M7: 4,602,378 km (0.09 R)
• M8: 5,453,142 km (0.116 R)
• M9: 5,916,745 km (0.087 R)
• M10: 6,648,279 km (0.107 R)
• M11: 7,380,860 km (0.062 R)
• M12: 8,387,803 km (0.092 R)
• M13: 9,519,212 km (0.063 R)
• M14: 10,158,144 km (0.087 R)
• M15: 11,561,671 km (0.105 R)
• M16: 12,962,207 km (0.089 R)
• M17: 13,570,771 km (0.028 R)
• M18: 14,939,292 km (0.053 R)
• M19: 17,369,659 km (0.074 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 405 - 10,728 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit